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Finding the Fourth Proportional to 119,793.60, 179,431.20 and 106,660.80

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Solution

The fourth proportional to 119,793.60, 179,431.20 and 106,660.80 is: 159,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,793.60 : 179,431.20 = 106,660.80 : x
  2. Step 2: Convert to fraction form
    119,793.60/179,431.20 = 106,660.80/x
  3. Step 3: Cross multiply
    119,793.60x = 179,431.20 × 106,660.80
  4. Step 4: Simplify right side
    119,793.60x = 19,138,275,336.96
  5. Step 5: Solve for x
    x = 19,138,275,336.96/119,793.60
  6. Step 6: Final answer
    x = 159,760.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.